Willem Mengelberg is undeniably the greatest conductor in Dutch music history. To this day, few have even come close to matching his glorious, international career. Mengelberg was not only one of the world's greatest conductors, he had an excellent reputation as a trainer, a builder of orchestral ensembles, responsible for the international reputation of his own Concertgebouw as well as many others including the New York Philharmonic. While in New York, Mengelberg shared his position as Principal Conductor of the Philharmonic with his friend and rival, Arturo Toscanini.

Champion of numerous composers of which Gustav Mahler and Richard Strauss are the most illustrious, Mengelberg was also the founder of the now renowned tradition of annual performances of J.S. Bach's St. Matthew Passion in The Netherlands. As Chief Conductor of Amsterdam's (now Royal) Concertgebouw Orchestra, Willem Mengelberg developed the ensemble into one of the world's most illustrious and in doing so, forged a music life of international eminence for its city of residence. Mengelberg's recordings bear witness to a singular musical interpreter.

As of 1920, Willem Mengelberg was even more popular than his own Queen. A mere thirty years later he died in exile, banned to his remote summer chalet in Switzerland. The most successful of all the chief conductors of one of the world's best symphonic ensembles fell from being a global music legend to a despised and disputed target of gossip, jealousy and rebuke. His dubious role during World War II has overshadowed his extraordinary musical career ever since.

Frits Zwart

Frits Zwart (1954) is a musicologist and the Director of the Nederlands Muziek Instituut (Netherlands Music Institute) in The Hague, an extensive and significant collection of Dutch musical materials important to the country's cultural heritage. Zwart studied musicology at Utrecht University and received his PhD for a dissertation on the conductor Willem Mengelberg (biography 1871-1920). He has worked as a curator of the music department of the Gemeentemuseum in The Hague before becoming the Director of NMI in 2001. He has published numerous articles related to the music history of The Netherlands.